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Finding the Third Proportional to 5,415,543 and 11,894,021

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Solution

The third proportional to 5,415,543 and 11,894,021 is: 26,122,539.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415,543 : 11,894,021 = 11,894,021 : x
  2. Step 2: Convert to fraction form
    5,415,543/11,894,021 = 11,894,021/x
  3. Step 3: Cross multiply
    5,415,543x = 11,894,021 × 11,894,021
  4. Step 4: Simplify right side
    5,415,543x = 141,467,735,548,441
  5. Step 5: Solve for x
    x = 141,467,735,548,441/5,415,543
  6. Step 6: Final answer
    x = 26,122,539.43

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.